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Finding the Fourth Proportional to 143,999.52, 198,718.72 and 80,337.24

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Solution

The fourth proportional to 143,999.52, 198,718.72 and 80,337.24 is: 110,865.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,999.52 : 198,718.72 = 80,337.24 : x
  2. Step 2: Convert to fraction form
    143,999.52/198,718.72 = 80,337.24/x
  3. Step 3: Cross multiply
    143,999.52x = 198,718.72 × 80,337.24
  4. Step 4: Simplify right side
    143,999.52x = 15,964,513,501.13
  5. Step 5: Solve for x
    x = 15,964,513,501.13/143,999.52
  6. Step 6: Final answer
    x = 110,865.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.